JPH0335225Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention enables browning inside a microwave oven and forced rapid heating from the outside, and can be used in common cooking containers such as pots, plates, frying pans, etc. The present invention relates to a forced heating cooker that can be used in conjunction with a forced heating cooker, and more specifically to a forced heating cooker that is extremely safe even when it is in an empty cooking state.

[Conventional technology]

BACKGROUND OF THE INVENTION Conventional cooking appliances, such as pots and frying pans, are used to heat food stored therein for cooking, or to heat various edible materials in a microwave oven. but,
When cooking ingredients with low moisture content are heated in a microwave oven, the problem is that it takes time to heat the ingredients because the microwaves from the microwave tend to be absorbed by the surface of the ingredients and heat them. Therefore, if you want to brown the food externally or heat it rapidly,
There was a problem in that oven-like effects could not be determined using microwaves alone.

For example, a heating container disclosed in Japanese Patent Publication No. 55-50916 has been devised to solve these problems. This heating container can hold ferrite from 40~
It is molded using 80% by weight eucryptite, and the container is heated by the microwave absorption effect of ferrite, and the heated container indirectly heats the food. If this heating container is used, it becomes possible to use both direct heating of foodstuffs using microwaves and indirect heating of foodstuffs using a high-temperature container, and it is also possible to brown the surface of the foodstuffs.

[Problem that the invention attempts to solve]

However, since this container has a high ferrite content in order to increase the temperature in a short period of time, the container tends to be heated excessively. Since no measures are taken to prevent excessive temperature rise in this container, the material of the container may suffer thermal deterioration due to excessive temperature rise, and the container may break during empty cooking, which is extremely dangerous. Furthermore, if the turntable of the microwave oven is made of resin, there is a risk that the turntable will be damaged by melting. The present invention was developed in view of the current situation, and provides a forced heating cooker that prevents thermal deterioration of the container by preventing excessive temperature rise of the container and is safe even when the container is in an empty cooking state. This is what I am trying to do.

[Means for solving problems]

In order to achieve the object of the present invention, the present invention provides a forced heating cooker made of a ceramic material mixed with 3 to 10% by weight of ferrite whose Curie point is set at a predetermined temperature. It is.

[Effect]

The cooking device according to the present invention is made by mixing ferrite, which is highly effective in concentrating microwaves, into the manufacturing material of ceramics. If it is installed inside, the microwave acts directly on the food inside the cooker and heats it, and at the same time, a part of the microwave is intensively absorbed by the ferrite that makes up the cooker, causing the cooker to quickly and quickly heat up the food. The object to be heated is rapidly heated by thermal conduction or radiant heat. Since the amount of ferrite is set at 3 to 10% by weight, the rate of temperature rise is moderately suppressed and thermal deterioration of the cooker can be prevented, and the Curie point of ferrite remains at the specified temperature. Because the temperature is set, even if the cooker becomes hot due to dry cooking, once the temperature of the cooker reaches the specified temperature, the ferrite will transform into a paramagnetic substance and the heat generation effect will be significantly reduced. ,
It is possible to avoid increasing the temperature above a predetermined temperature.

〔Example〕

The details of the present invention will be explained based on further illustrated embodiments. The drawing shows an example of a forced heating cooker according to the present invention. The example is applied to a pot 2 with a lid 1, and this pot 2 is manufactured by firing in a conventional manner using general ceramic materials, pottery, porcelain, and other inorganic materials. It is made by mixing ferrite and firing it.
Since this pot 2 contains ferrite in its main body, when microwaves are irradiated inside the microwave oven, the microwaves act directly on the object to be heated such as food inside the pot 2 and heat it. At the same time, it is concentrated by the ferrite part of the pot 2, and the ferrite part of the pot 2
Since the temperature is heated rapidly and to a high temperature, the radiant heat radiated from the pot 2 and the heat conduction cause the food to be heated inside the pot 2 to be rapidly heated from the outside, and in some cases browned. Here, the material for making the cooker in the present invention is a ceramic material, which is a concept that includes materials for making pottery and porcelain, including ceramic materials in the narrow sense as described above, and this material contains ferrite (for example, manganese). Zinc ferrite) is mixed in an amount of 3 to 10% by weight. When the content of ferrite is 3% by weight or less, it is excluded because the microwave concentration effect is not expected to be very strong, and
A content of 10% by weight or more is excluded because the heat generation is too large and there is a high possibility that the material will undergo thermal deterioration. In addition, as the ferrite, one having a Curie point at a predetermined temperature is selected,
A material is selected that transitions from ferromagnetic to paramagnetic when the temperature reaches a predetermined temperature or higher, thereby reducing the heat generation effect. For example, when the ferrite is manganese zinc ferrite, the setting of the Curie point is performed by adjusting the contents of manganese and zinc.

Cooking utensils made of ceramic materials mixed with this ferrite, such as pots, pots, frying pans, plates, pots, bowls for food, etc., can be molded and molded in the same way as general ceramic or porcelain cooking utensils. It is created through processes such as firing. and,
By mixing a part of the far-infrared emitting material into this ceramic material, the heating by the cooker is not limited to heating by heat conduction from the cooker.
Far-infrared rays enable heating of foodstuffs and other objects to be heated from within, and if this cooker is used in a microwave oven, in addition to these, microwaves can also be used to heat foodstuffs from within.

[Effect of idea]

The forced heating cooker of the present invention is made by mixing ferrite into the ceramic material, so if this cooker containing an object to be heated such as food is used in a microwave oven, the microwave will heat the object internally. At the same time, the heated object is heated indirectly by heat conduction and radiant heat from the microwave-heated cooker, which not only heats the food effectively but also browns the surface of the food. You can also add . Moreover, since the blending amount of ferrite is set in the range of 3 to 10% by weight, rapid temperature rise of the cooker is prevented and thermal deterioration of the cooker can be avoided. In addition, since we use ferrite with a Curie point set at a predetermined temperature, even if the cooker becomes empty, the temperature will not rise above the predetermined temperature, and the container will not be damaged or the electronic It is safe and there is no risk of the microwave turntable being melted or damaged.

[Brief explanation of the drawing]

The drawing is an explanatory cross-sectional view showing one embodiment of the present invention. 1: Lid, 2: Pot.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A forced heating cooker made of a ceramic material mixed with 3 to 10% by weight of ferrite with a Curie point set at a predetermined temperature. (2) The forced heating cooker according to claim 1, which is made of a ceramic material containing a far-infrared emitting material.